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Specification and verification of systems using model checking and Markov reward models
(2004)
This thesis examines Markov reward models, a formalism based on continuous time Markov chains, and it's usage in the generation and analysis of service levels. The particular solution technique we employ in this thesis is ...
Interactive cultural story-telling virtual environments using San stories
(2004)
Story-telling is being used for the preservation of culture, and interactive story-telling in particular is attractive for its ability to provide the user with a hands-on experience. We explored the feasibility of interactive ...
Visual query tools for uncertain data in space and time
(2004)
The aim of our project was to develop query and visualisation tools for this archive of African art. Our query system had to be designed to cope with different degrees of uncertainty in data, both in time and space. One ...
Story experience in a virtual San storytelling environment : a cultural heritage application for children and young adults
(2005)
This dissertation explores virtual storytelling for conveying cultural stories effectively. We set out to investigate: (1) the strengths and/or weaknesses of VR as a storytelling medium; (2) the use of a culturally familiar ...
A framework for building spatiotemporal applications in Java
(2001)
A relatively new area of study that first received attention during the past decade explores how spatiotemporal data can be efficiently used in applications and stored in databases. Spatial data includes the locations or ...
A hybrid scavenger grid approach to intranet search
(2009)
According to a 2007 global survey of 178 organisational intranets, 3 out of 5 organisations are not satisfied with their intranet search services. However, as intranet data collections become large, effective full-text ...
Extraction of surface texture data from low quality photographs to aid the construction of virtual reality models of archaeological sites
(2001)
A tool has been designed and implemented to use information extracted from photographs captured using uncalibrated cameras (so-called casual photographs) to fill the occlusions which occur in three-dimensional models of ...
Garbage collection of the PLAVA object store
(2002)
This research investigates the implementation of suitable garbage collection schemes for a persistent store. The store that formed the basis for these experiments was the one developed for a Java Virtual Machine known as ...
Using programming tools in virtual environments
(2002)
Presence is the sense of being in the computer-generated environment. It is regarded as the key to understanding the success of a virtual environment. In this research we focus on desktop virtual environment authoring ...
Developing locally relevant applications for rural South Africa : a telemedicine example
(2005)
Within developing countries, there is a digital divide between rural and urban areas. In order to overcome this division, we need to provide locally relevant Information and Communication Technology (ICT) services to these ...